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Rabbit Recombinant Monoclonal TAU phospho S199 antibody. Suitable for Dot, WB and reacts with Synthetic peptide, Mouse, Human samples. Cited in 13 publications.


Images

Dot Blot - Anti-Tau (phospho S199) antibody [EPR2401Y] (AB81268), expandable thumbnail
  • Western blot - Anti-Tau (phospho S199) antibody [EPR2401Y] (AB81268), expandable thumbnail
  • Western blot - Anti-Tau (phospho S199) antibody [EPR2401Y] (AB81268), expandable thumbnail
  • Dot Blot - Anti-Tau (phospho S199) antibody [EPR2401Y] (AB81268), expandable thumbnail
  • Western blot - Anti-Tau (phospho S199) antibody [EPR2401Y] (AB81268), expandable thumbnail

Publications

Key facts

Isotype
IgG
Host species
Rabbit
Storage buffer

pH: 7.2 - 7.4
Preservative: 0.01% Sodium azide
Constituents: 59% PBS, 40% Glycerol (glycerin, glycerine), 0.05% BSA

Form
Liquid
Clonality
Monoclonal

Immunogen

  • The exact immunogen used to generate this antibody is proprietary information.

Reactivity data

Select an application
Product promiseTestedExpectedPredictedNot recommended
IHC-PDotWB
Human
Not recommended
Expected
Tested
Mouse
Not recommended
Expected
Tested
Rat
Not recommended
Predicted
Predicted
Synthetic peptide
Not recommended
Tested
Not recommended

Not recommended
Not recommended

Species
Human, Rat, Mouse, Synthetic peptide
Dilution info
-
Notes

-

Tested
Tested

Species
Synthetic peptide
Dilution info
1/1000
Notes

-

Expected
Expected

Species
Mouse, Human
Dilution info
Use at an assay dependent concentration.
Notes

-

Predicted
Predicted

Species
Rat
Dilution info
-
Notes

-

Tested
Tested

Species
Mouse
Dilution info
1/5000 - 1/20000
Notes

-

Species
Human
Dilution info
1/5000 - 1/20000
Notes

-

Predicted
Predicted

Species
Rat
Dilution info
-
Notes

-

Not recommended
Not recommended

Species
Synthetic peptide
Dilution info
-
Notes

-

Associated Products

Select an associated product type

7 products for Alternative Product

Target data

Function

The protein expressed by the MAPT gene promotes microtubule assembly and stability and might be involved in establishing and maintaining neuronal polarity. Its C-terminus binds axonal microtubules, and the N-terminus binds neural plasma membrane components, suggesting that tau functions as a linker protein between the two. Axonal polarity is predetermined by MAPT localization within the neuronal cell's domain defined by the centrosome. The short isoforms allow cytoskeleton plasticity, whereas the longer isoforms may preferentially play a role in its stabilization. This supplementary information is collated from multiple sources and compiled automatically.

Additional Targets

TAU_HUMAN, MAPT phospho S199

Alternative names

Recommended products

Rabbit Recombinant Monoclonal TAU phospho S199 antibody. Suitable for Dot, WB and reacts with Synthetic peptide, Mouse, Human samples. Cited in 13 publications.

Key facts

Isotype
IgG
Form
Liquid
Clonality
Monoclonal
Immunogen
  • The exact immunogen used to generate this antibody is proprietary information.
Clone number
EPR2401Y
Purification technique
Affinity purification Protein A
Specificity

The specificity of this antibody refers to P10636-8.

Dissociation constant
2.95 x 10-12 M
Concentration
Loading...

Storage

Shipped at conditions
Blue Ice
Appropriate short-term storage conditions
+4°C
Appropriate long-term storage conditions
-20°C
Aliquoting information
Upon delivery aliquot
Storage information
Avoid freeze / thaw cycle

Notes

Our RabMAb® technology is a patented hybridoma-based technology for making rabbit monoclonal antibodies. For details on our patents, please refer to RabMAb® patents.

This product is a recombinant monoclonal antibody, which offers several advantages including:

  • - High batch-to-batch consistency and reproducibility
  • - Improved sensitivity and specificity
  • - Long-term security of supply
  • - Animal-free batch production

For more information, read more on recombinant antibodies.

Supplementary info

This supplementary information is collated from multiple sources and compiled automatically.
Activity summary

Tau also known as microtubule-associated protein Tau (MAPT) plays an important role in stabilizing microtubules in neuronal cells. Tau is primarily found in the central nervous system but also exists in peripheral neurons. Human Tau protein comes in six isoforms due to alternative splicing with molecular weights ranging from 48 kDa to 67 kDa. This protein predominantly locates in the axons of neurons where it maintains the stability of microtubule tracks necessary for axonal transport.

Biological function summary

Tau is involved in the assembly and stabilization of microtubules essential for maintaining neuronal structure. It interacts with microtubule-binding domains (MBD) to bind and bundle microtubules facilitating intracellular transport. Tau forms a part of the neuronal cytoskeleton complex working closely with other cytoskeletal proteins to preserve the proper axonal transport and function. Abnormally phosphorylated Tau often termed phospho-Tau disrupts this complex affecting microtubule stability.

Pathways

Tau has critical involvement in several signaling cascades such as the microtubule-binding and transport pathways. Glycogen synthase kinase 3 beta (GSK3β) and cyclin-dependent kinase 5 (CDK5) frequently phosphorylate Tau controlling its interaction with microtubules. Phosphorylated Tau accumulates leading to the formation of neurofibrillary tangles often observed in neurodegenerative conditions. Additionally Tau interacts with GAPDH impacting cellular energy regulation through potential pathway cross-talk involving oxidative stress responses.

Associated diseases and disorders

Tau is closely associated with Alzheimer's disease and frontotemporal dementia. In Alzheimer's disease hyperphosphorylated Tau aggregates into paired helical filaments forming neurofibrillary tangles while similar aggregates are observed in frontotemporal dementia. In these conditions Tau links to amyloid precursor protein (APP) where misregulated phosphorylation-driven interactions contribute to neurodegeneration. Identifying phospho-Tau and its altered interactions with related proteins aids in understanding and potentially treating these disorders.

Product promise

We are dedicated to supporting your work with high quality reagents and we are here for you every step of the way should you need us.

In the unlikely event of one of our products not working as expected, you are covered by our product promise.

Full details and terms and conditions can be found here:
Terms & Conditions.

7 product images

  • Dot Blot - Anti-Tau (phospho S199) antibody [EPR2401Y] (ab81268), expandable thumbnail

    Dot Blot - Anti-Tau (phospho S199) antibody [EPR2401Y] (ab81268)

    Dot blot analysis using 1/1000 dilution ab81268 and Goat Anti-Rabbit IgG, (H+L), Peroxidase conjugated (Goat Anti-Rabbit IgG H&L (HRP) ab97051) secondary at 1/100000 dilution.

    Blocking and diluting buffer: 5% NFDM/TBST

    Lane 1: Tau non-phospho peptide

    Lane 2: Tau S199 phospho peptide

    Lane 3: Tau S202 phospho peptide

    Lane 4: Tau S199+S202 phospho peptide

    Exposure time: 3 minutes

  • Western blot - Anti-Tau (phospho S199) antibody [EPR2401Y] (ab81268), expandable thumbnail

    Western blot - Anti-Tau (phospho S199) antibody [EPR2401Y] (ab81268)

    Blocking and dilution buffer: 5% NFDM/TBST.

    All lanes: Western blot - Anti-Tau (phospho S199) antibody [EPR2401Y] (ab81268) at 1/1000 dilution

    Lane 1: Mouse cerebral cortex tissue lysate at 10 µg

    Lane 2: Mouse cerebral cortex tissue lysate, The membrane was incubated with phosphatase at 10 µg

    Secondary

    All lanes: Western blot - Goat Anti-Rabbit IgG H&L (HRP) (Goat Anti-Rabbit IgG H&L (HRP) ab97051) at 1/100000 dilution

    Predicted band size: 78 kDa

    Observed band size: 55 kDa

    Exposure time: 5s

  • Western blot - Anti-Tau (phospho S199) antibody [EPR2401Y] (ab81268), expandable thumbnail

    Western blot - Anti-Tau (phospho S199) antibody [EPR2401Y] (ab81268)

    Blocking and dilution buffer: 5% NFDM/TBST.

    All lanes: Western blot - Anti-Tau (phospho S199) antibody [EPR2401Y] (ab81268) at 1/1000 dilution

    Lane 1: Human hippocampus tissue lysate at 10 µg

    Lane 2: Human hippocampus tissue lysate. The membrane was incubated with phosphatase. at 10 µg

    Secondary

    All lanes: Western blot - VeriBlot for IP Detection Reagent (HRP) (VeriBlot for IP Detection Reagent (HRP) ab131366) at 1/2000 dilution

    Predicted band size: 78 kDa

    Observed band size: 55 kDa

    Exposure time: 1min

  • Dot Blot - Anti-Tau (phospho S199) antibody [EPR2401Y] (ab81268), expandable thumbnail

    Dot Blot - Anti-Tau (phospho S199) antibody [EPR2401Y] (ab81268)

    Dot blot analysis of Tau (pS199) peptide (Lane 1) and Tau non-phospho peptide (Lane 2) labelling Tau (pS199) with ab81268 at a dilution of 1/1000. Goat Anti-Rabbit IgG H&L (HRP) ab97051 (peroxidase-conjugated goat anti-rabbit IgG (H+L)) was used as the secondary antibody at a dilution of 1/100000.

    Exposure time: 3 minutes.
    Blocking and dilution buffer: 5% NFDM/TBST.

  • Western blot - Anti-Tau (phospho S199) antibody [EPR2401Y] (ab81268), expandable thumbnail

    Western blot - Anti-Tau (phospho S199) antibody [EPR2401Y] (ab81268)

    All lanes: Western blot - Anti-Tau (phospho S199) antibody [EPR2401Y] (ab81268) at 1/20000 dilution

    Lane 1: SH SY5Y cell lysate at 10 µg

    Lane 2: SH SY5Y cell lysate treated with alkaline phosphatase at 10 µg

    Secondary

    All lanes: HRP labelled goat anti-rabbit at 1/2000 dilution

    Predicted band size: 78 kDa

    Observed band size: 55 kDa

  • Western blot - Anti-Tau (phospho S199) antibody [EPR2401Y] (ab81268), expandable thumbnail

    Western blot - Anti-Tau (phospho S199) antibody [EPR2401Y] (ab81268)

    Tau (phospho S199) Western blot staining using rabbit Anti-Tau (phospho S199) antibody

    Blocking and dilution buffer: 5% NFDM/TBST.

    All lanes: Western blot - Anti-Tau (phospho S199) antibody [EPR2401Y] (ab81268) at 1/1000 dilution

    Lane 1: 293T cells transfected with an empty vector containing a flag tag whole cell lysate at 20 µg

    Lane 2: 293T cells transfected with a human Tau expression vector containing a flag whole cell lysate at 20 µg

    Lane 3: 293T cells transfected with a human MAP2 expression vector containing a flag whole cell lysate at 20 µg

    Lane 4: 293T cells transfected with a human MAP4 expression vector containing a flag whole cell lysate at 20 µg

    Secondary

    All lanes: Western blot - Goat Anti-Rabbit IgG H&L (HRP) (Goat Anti-Rabbit IgG H&L (HRP) ab97051) at 1/20000 dilution

    Predicted band size: 78 kDa

    Observed band size: 55-100 kDa

    Exposure time: 1s

  • Western blot - Anti-Tau (phospho S199) antibody [EPR2401Y] (ab81268), expandable thumbnail

    Image collected and cropped by CiteAb under a CC-BY license from the publication

    Western blot - Anti-Tau (phospho S199) antibody [EPR2401Y] (ab81268)

    Tau (phospho S199) western blot using anti-Tau (phospho S199) antibody [EPR2401Y] ab81268. Publication image and figure legend from Yang, S. H., Lee, D. K., et al., 2017, EMBO Mol Med, PubMed 27861127.


    ab81268 was used in this publication in western blot. This may not be the same as the application(s) guaranteed by Abcam. For a full list of applications guaranteed by Abcam for ab81268 please see the product overview.

    Nec‐1 inhibits the phosphorylation and aggregation of tauAWestern blot analysis of phosphorylation levels of tau and expression levels of indicated proteins in the cortical and hippocampal regions of the brain in APP/PS1 mice after administration of Nec‐1 (6.25 mg/kg) or vehicle (2.5% DMSO in PBS). The membranes analysed are identical to those in Fig 5F.BImmunohistochemical analysis of cortical and hippocampal regions of the brains in wild‐type (Wt) and APP/PS1 mice after administration of Nec‐1 (6.25 mg/kg) or vehicle (2.5% DMSO in PBS) for phosphorylated tau expression levels. Anti‐tau (phospho‐Ser199) antibody (red colour) was applied for staining tau phosphorylation on serine‐199 and Hoechst 33342 (blue colour) for nuclear counterstaining in the brain sections. Scale bars = 200 μm. Yellow and red boxes indicate the cortical and hippocampal region of brains, respectively.CWestern blot analyses of phosphorylated RIPK3 expression in cortex and hippocampus of APP/PS1 mice injected with Nec‐1 (upper), and primary cultured astrocytes treated with Nec‐1 (lower). The membranes analysed are identical to those in Figs 1G and 5F.D, EThT assays for the inhibition of tau aggregation (D) and for disaggregation of tau (E). Fluorescence intensity was normalized to tau aggregates (100%, day 5). All data are representative results of at least three independent experiments.FSurface plasmon resonance sensorgrams of Nec‐1 targeting tau (left), and the corresponding dissociation fitting curve from the saturated region (right) under various concentrations of Nec‐1.Data information: In (D and E), data are presented as mean ± SEM. ***P ≤ 0.001 (one‐way ANOVA followed by Bonferroni's post hoc comparisons tests). Exact P‐values are shown in Table EV5. Source data are available online for this figure.

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